Ответы на вопрос:
а) 6 1/3 - 9 = -(8 3/3 - 6 1/3) = -2 2/3
б) 3/8 : (-6/32) = 3/8 · (-32/6) = -(1·4)/(1·2) = -4/2 = -2
в) 9/14 · (-4,(2)) = 9/14 · (-4 2/9) = 9/14 · (-38/9) = -38/14 = -19/7 = -2 5/7
г) -0,9 · (-0,1) = 0,09
д) -12 5/7 + 5 3/5 = -(12 25/35 - 5 21/35) = -7 4/35
е) 7/12 · (-36/1) = -(7·3)/(1·1) = -21
ж) -64 : (-16/9) = 64/1 · 9/16 = (4·9)/(1·1) = 36
з) 38 : (-0,019) = 38000 : (-19) = -2000
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